Inventor
Douglas Espin
Inventor
Caracas, VE
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling19%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests16%
C09KMaterials for miscellaneous applications, not provided for elsewhere13%
C10GCracking hydrocarbon oils10%
B82YSpecific uses or applications of nanostructures6%
Y10TTechnical subjects covered by former us classification6%
B03CMagnetic or electrostatic separation of solid materials from solid materials or fluids3%
C01GCompounds containing metals not covered by subclasses c01d or c01f3%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds3%
C04BLime, magnesia3%
PatentTitleYear
11,084,984Processes and systems for improvement of heavy crude oil using induction heating20219,040,154'Magnetic composite particles'20156,740,141'Method for removing H2S and CO2 from above ground hydrocarbon streams'20046,607,036'Method for heating subterranean formation, particularly for heating reservoir fluids in near well bore zone'20036,579,572'Water-based system for altering wettability of porous media'20036,579,832'Method for treating drilling fluid using nanoparticles'20036,554,070'Composition and method for sealing an annular space between a well bore and a casing'20036,513,592'Method for consolidation of sand formations using nanoparticles'20036,481,501'Method and apparatus for drilling and completing a well'20026,447,577'Method for removing H2S and CO2 from crude and gas streams'20026,360,823'Apparatus and method for performing downhole measurements'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002–2004Patents assigned to INTEVEP SA (9)· patent assignee history
2002–2004Based in Caracas, VE· patent location history
2002Based in Cavacas, VE· patent location history
2003Based in Canacas, VE· patent location history
2004Patents assigned to NANOSCALE MATERIALS INC (1)· patent assignee history
2015–2021Patents assigned to NEOTECHNOLOGY LLC (2)· patent assignee history
2015Patents assigned to DE OLIVEIRA PETER WILLIAM (1)· patent assignee history
2015Patents assigned to ESPIN DOUGLAS (1)· patent assignee history
2015Based in Saarbrücken, DE· patent location history
2021Based in Macaracuay, VE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| INTEVEP SA | 9 | 2002–2004 |
| NEOTECHNOLOGY LLC | 2 | 2015–2021 |
| DE OLIVEIRA PETER WILLIAM | 1 | 2015 |
| ESPIN DOUGLASself | 1 | 2015 |
| NANOSCALE MATERIALS INC | 1 | 2004 |
Locations
| Location | Patents | Span |
|---|---|---|
| Caracas, VE | 7 | 2002–2004 |
| Macaracuay, VE | 1 | 2021 |
| Saarbrücken, DE | 1 | 2015 |
| Canacas, VE | 1 | 2003 |
| Cavacas, VE | 1 | 2002 |